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Ordinal Numbers

Definition of Ordinal Numbers

Ordinal numbers are used to describe the position or order of objects or events in a sequence. These numbers are written in a specific format, such as “1st,” “2nd,” “3rd,” “4th,” and so on. The first ten ordinal numbers are usually spelled out in full, while higher numbers are written using a combination of numbers and letters.

Real-life Examples of Ordinal Numbers

  1. Olympic Medal Ranking
  2. Classroom Seating Arrangement
  3. Race Finishing Positions:
  4. Apartment Floor Numbers
  5. Birth Order

Difference Between Cardinal and Ordinal Numbers

Cardinal numbers are used to represent the quantity or number of objects in a set.

For example, if there are five apples in a basket, we say that the cardinality of the set of apples is five.

Cardinal numbers can be used for counting, measuring, and comparing quantities. They include numbers such as 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and so on.

Ordinal numbers, on the other hand, are used to represent the position or order of objects in a series or sequence.

For example, if you are running a race and you finish in second place, your ordinal rank is 2nd.

Ordinal numbers are written in a specific format, such as “1st,” “2nd,” “3rd,” “4th,” and so on. They indicate the order of things and their position in a sequence.

List of Ordinal Numbers from 1 to 100

Number Ordinal Number Ordinal Number Ordinal
1 1st 21 21st 41 41st
2 2nd 22 22nd 42 42nd
3 3rd 23 23rd 43 43rd
4 4th 24 24th 44 44th
5 5th 25 25th 45 45th
6 6th 26 26th 46 46th
7 7th 27 27th 47 47th
8 8th 28 28th 48 48th
9 9th 29 29th 49 49th
10 10th 30 30th 50 50th
11 11th 31 31st 51 51st
12 12th 32 32nd 52 52nd
13 13th 33 33rd 53 53rd
14 14th 34 34th 54 54th
15 15th 35 35th 55 55th
16 16th 36 36th 56 56th
17 17th 37 37th 57 57th
18 18th 38 38th 58 58th
19 19th 39 39th 59 59th
20 20th 40 40th 60 60th

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Ordinal Numbers Examples

Example1: John finished the race in 1st place.

The ordinal number is “1st” indicating the position of John in the race.
Example2: Today is the 5th of June.

Example3: The ordinal number is “5th” indicating the date in the month of June.
The 3rd book on the shelf is my favorite.

Example4: The ordinal number is “3rd” indicating the position of the book on the shelf.
She is the 2nd student to present her project.

Example5: The ordinal number is “2nd” indicating the position of the student in presenting the project.
We will be staying on the 7th floor of the hotel.

The ordinal number is “7th” indicating the floor number in the hotel.

FAQs on Ordinal Numbers

Q: What are ordinal numbers?
A: Ordinal numbers are the numbers used to indicate the position or order of something in a series or sequence.

Q: How are ordinal numbers written?
A: Ordinal numbers are typically written with a suffix that indicates the position or order of the number. For example, “1st” is the ordinal form of “1,” and “2nd” is the ordinal form of “2.”

Q: What is the difference between cardinal and ordinal numbers?
A: Cardinal numbers are used to denote the quantity or number of objects or things, while ordinal numbers are used to denote the position or order of objects or things.

Q: What is the rule for forming ordinal numbers?
A: The rule for forming ordinal numbers is to add a suffix to the cardinal number. For example, adding “-st” to “1” gives “1st,” adding “-nd” to “2” gives “2nd,” and so on.

Q: How are ordinal numbers used in sentences?
A: Ordinal numbers are used in sentences to indicate the position or order of something in a series or sequence. For example, “John came in 3rd place in the race” indicates that John finished in the third position in the race.

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